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📚 Class 9 CBSE Chemistry – Chapter 1 Revision Notes
Matter in Our Surroundings | Handwritten Colorful Notes ✍️
Easy, short and exam-ready revision notes for quick learning.
Perfect for last-minute study, concept clarity and quick revision.
✔ Handwritten colorful notes
✔ Important concepts covered
✔ Simple language
✔ Quick revision friendly
Save this post for exam time and share with your friends who need quick revision! 🚀
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So simple but it WORKS, trust me! 💯🧪🏆👩🏽🎓
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Lol I may not remember much from chemistry but this I will definitely not forget 😝 #periodictable
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Short notes, lesson summary, and exam tips for GCSE Chemistry/ IGCSE Chemistry/As-Level and A-Level Chemistry/ IBDP Chemistry students.
Functional isomers, Functional isomerism.
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10thgrade 10thgrader 11thgrade 11thgrader 9thgrade 9thgrader 12thgrade 12thgrader
chemist
Periodic trends explain how atomic radius, ionization energy, and electronegativity change across the periodic table. These trends help predict chemical behavior of elements.
📘 SPCLASSES
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Best Organic Chemistry Notes for NEET/KEAM/JEE 📚
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Comment ‘CHEMISTRY’ and I’ll send you the PDF 📩”
Strong vs Weak Acids & pH Scale 🧪
Strong acids fully ionize in water, producing more H⁺ ions, while weak acids ionize partially and produce fewer H⁺ ions.
The pH scale (0–14) helps measure how acidic or basic a solution is — with 7 being neutral, below 7 acidic, and above 7 basic.
From lemon juice (acidic) to soap solution (basic), pH plays an important role in daily life, soil health, and even tooth decay.
#ChemistryNotes #AcidsAndBases #pHScale #ScienceNotes #Class10Science StudyNotes EasyLearning StudentLife ScienceFacts
OH⁻ vs SH⁻ — which is more basic?
Many students say SH⁻ because sulfur is less electronegative
But the correct answer is: OH⁻ is MORE BASIC
Why?
Basicity depends on how tightly the negative charge is held
Oxygen is smaller → holds charge tightly → more reactive → stronger base
Sulfur is larger → charge spreads out → more stable → weaker base
Shortcut for exams:
Down a group → size ↑ → basicity ↓
So:
OH⁻ > SH⁻ (in basicity)
⚠️ Important trap:
Don’t confuse basicity with acidity
(H₂S is more acidic, but SH⁻ is a weaker base!)
⸻
Drop your answer before seeing explanation next time!
Save this for revision — this concept repeats every year.
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🚀 The “Challenge Accepted” Vibe
30 Days. One Goal. The ultimate NEET revision blueprint starts NOW. No more “I’ll start tomorrow.” Tomorrow is here. Who’s in? 🩺✨
Hook for Reel: “Stop scrolling, start scoring. 30 days to change your prefix to ‘Dr.’” #NEET2026 #NEETPreparation #ChemistryNotes
We asked you about which topics scare you, and an overwhelming response was for Organic Chemistry ⚗️🧪
Here's our co-founder himsef, @apsir_v, with a quick guide to mastering this branch of chemistry.
Still need help? Click the link in bio 🔗
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every chemistry exam was me just mumbling nonsense like this and then writing rappa rappa 😬 you’ll find the earlier parts in the guides section ☺️) #hackstolearn #hackstolearnchemistry
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General organic chemistry Toppers Short Notes PDF(Link in Bio)
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